28741700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22109}}^1$

素因数の和:22136

約数の個数: 36

約数和(自身を含む): 67170180

約数和(自身を除く): 38428480

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 22109, 44218, 88436, 110545, 221090, 287417, 442180, 552725, 574834, 1105450, 1149668, 1437085, 2210900, 2874170, 5748340, 7185425, 14370850, 28741700]

約数ペア:

[(1, 28741700), (2, 14370850), (4, 7185425), (5, 5748340), (10, 2874170), (13, 2210900), (20, 1437085), (25, 1149668), (26, 1105450), (50, 574834), (52, 552725), (65, 442180), (100, 287417), (130, 221090), (260, 110545), (325, 88436), (650, 44218), (1300, 22109)]